I submitted custom pictures for my [3]NPC's the other day and they were denied.
They were Cather NPC's and recieved this event:

"Year 9 Day 9, 22:05 Your custom image for entityID: ****** has been denied by Kendall Holm for the following reason: NPC Images must look like the Species represented"
I submitted these custom pictures:

You'd kinda figure that real cat pictures would be fine for a Cathar.

Also I submitted a custom picture for my Relby K-23 and they accepted it,
but the 400x300 is still the same.
Can someone help me out?